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Finding the Fourth Proportional to 448,876.50, 619,449.60 and 247,672.50

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Solution

The fourth proportional to 448,876.50, 619,449.60 and 247,672.50 is: 341,788.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,876.50 : 619,449.60 = 247,672.50 : x
  2. Step 2: Convert to fraction form
    448,876.50/619,449.60 = 247,672.50/x
  3. Step 3: Cross multiply
    448,876.50x = 619,449.60 × 247,672.50
  4. Step 4: Simplify right side
    448,876.50x = 153,420,631,056
  5. Step 5: Solve for x
    x = 153,420,631,056/448,876.50
  6. Step 6: Final answer
    x = 341,788.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.